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DTC P0030
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Question
cmoore74
The check engine light came on the other day and I'm throwing a code of P0030 which is Bank 1 Sensor 1 (driver's side upstream pre-cat) O2 heater control circuit.
I checked the fuse and that's fine.
Any other checks I should perform or shoudl I just replace the sensor?
Also seems to be a number of brands. Should I stick with AC Delco or go with Bosch or ???
Truck is a 2006 GMC Sierra with 5.3L V8 and about 119K.
Thanks in advance.
Chris
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